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Theorem cvmlift2lem4 30542
 Description: Lemma for cvmlift2 30552. (Contributed by Mario Carneiro, 1-Jun-2015.)
Hypotheses
Ref Expression
cvmlift2.b 𝐵 = 𝐶
cvmlift2.f (𝜑𝐹 ∈ (𝐶 CovMap 𝐽))
cvmlift2.g (𝜑𝐺 ∈ ((II ×t II) Cn 𝐽))
cvmlift2.p (𝜑𝑃𝐵)
cvmlift2.i (𝜑 → (𝐹𝑃) = (0𝐺0))
cvmlift2.h 𝐻 = (𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑧𝐺0)) ∧ (𝑓‘0) = 𝑃))
cvmlift2.k 𝐾 = (𝑥 ∈ (0[,]1), 𝑦 ∈ (0[,]1) ↦ ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑥)))‘𝑦))
Assertion
Ref Expression
cvmlift2lem4 ((𝑋 ∈ (0[,]1) ∧ 𝑌 ∈ (0[,]1)) → (𝑋𝐾𝑌) = ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑋)))‘𝑌))
Distinct variable groups:   𝑥,𝑓,𝑦,𝑧,𝐹   𝜑,𝑓,𝑥,𝑦,𝑧   𝑓,𝐽,𝑥,𝑦,𝑧   𝑓,𝐺,𝑥,𝑦,𝑧   𝑓,𝐻,𝑥,𝑦,𝑧   𝑓,𝑋,𝑥,𝑦,𝑧   𝐶,𝑓,𝑥,𝑦,𝑧   𝑃,𝑓,𝑥,𝑦,𝑧   𝑥,𝐵,𝑦,𝑧   𝑓,𝑌,𝑥,𝑦,𝑧   𝑓,𝐾,𝑥,𝑦,𝑧
Allowed substitution hint:   𝐵(𝑓)

Proof of Theorem cvmlift2lem4
StepHypRef Expression
1 oveq1 6556 . . . . . . 7 (𝑥 = 𝑋 → (𝑥𝐺𝑧) = (𝑋𝐺𝑧))
21mpteq2dv 4673 . . . . . 6 (𝑥 = 𝑋 → (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)))
32eqeq2d 2620 . . . . 5 (𝑥 = 𝑋 → ((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ↔ (𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧))))
4 fveq2 6103 . . . . . 6 (𝑥 = 𝑋 → (𝐻𝑥) = (𝐻𝑋))
54eqeq2d 2620 . . . . 5 (𝑥 = 𝑋 → ((𝑓‘0) = (𝐻𝑥) ↔ (𝑓‘0) = (𝐻𝑋)))
63, 5anbi12d 743 . . . 4 (𝑥 = 𝑋 → (((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑥)) ↔ ((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑋))))
76riotabidv 6513 . . 3 (𝑥 = 𝑋 → (𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑥))) = (𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑋))))
87fveq1d 6105 . 2 (𝑥 = 𝑋 → ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑥)))‘𝑦) = ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑋)))‘𝑦))
9 fveq2 6103 . 2 (𝑦 = 𝑌 → ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑋)))‘𝑦) = ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑋)))‘𝑌))
10 cvmlift2.k . 2 𝐾 = (𝑥 ∈ (0[,]1), 𝑦 ∈ (0[,]1) ↦ ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑥𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑥)))‘𝑦))
11 fvex 6113 . 2 ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑋)))‘𝑌) ∈ V
128, 9, 10, 11ovmpt2 6694 1 ((𝑋 ∈ (0[,]1) ∧ 𝑌 ∈ (0[,]1)) → (𝑋𝐾𝑌) = ((𝑓 ∈ (II Cn 𝐶)((𝐹𝑓) = (𝑧 ∈ (0[,]1) ↦ (𝑋𝐺𝑧)) ∧ (𝑓‘0) = (𝐻𝑋)))‘𝑌))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ∧ wa 383   = wceq 1475   ∈ wcel 1977  ∪ cuni 4372   ↦ cmpt 4643   ∘ ccom 5042  ‘cfv 5804  ℩crio 6510  (class class class)co 6549   ↦ cmpt2 6551  0cc0 9815  1c1 9816  [,]cicc 12049   Cn ccn 20838   ×t ctx 21173  IIcii 22486   CovMap ccvm 30491 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-sep 4709  ax-nul 4717  ax-pr 4833 This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ral 2901  df-rex 2902  df-rab 2905  df-v 3175  df-sbc 3403  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4373  df-br 4584  df-opab 4644  df-mpt 4645  df-id 4953  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-iota 5768  df-fun 5806  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554 This theorem is referenced by:  cvmlift2lem6  30544  cvmlift2lem8  30546
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